Psoas Abscess Secondary to Renal Tuberculosis in a Middle-aged Woman

A psoas muscle abscess is a relatively uncommon condition that can present with vague clinical features. With the decreasing prevalence of tuberculosis, psoas abscesses of tuberculous origin are currently rare in developed countries, but are typically caused by tuberculosis of the spine. Here, an unusual case of a psoas abscess secondary to renal tuberculosis in a middle-aged woman is presented. The abscess was successfully treated with percutaneous drainage followed by nephrectomy and additional antituberculous medications.